Google Coati rests on one 2022 sentence and appears in no Google documentation

Everything published about the Coati algorithm traces to a single source: Hyung-Jin Kim, Google’s VP of Search, speaking at the SMX Next keynote on November 15, 2022. Search Engine Land reported it the same day. Kim said “Panda has been subsequently replaced by Coati,” and described Coati as an update to the Panda algorithm. It was a remark in a keynote, not an announcement.

Three years and nine months later, that sentence is still the entire primary record.

Google’s own documentation has never contained the word. The “guide to Google Search ranking systems” is where Google lists what it will name — 17 active systems including BERT, RankBrain, MUM, neural matching, the passage ranking system and the reviews system, plus four retired ones. It was last updated 2025-12-10. Coati is not on it, in either list.

Panda is. Google describes it as “a system designed to better ensure high-quality and original content was appearing in our search results,” announced in 2011, and says it “evolved and became part of our core ranking systems in 2015.”

That is a different account from the one Kim gave. Google’s written record says Panda was absorbed into core ranking and names no successor. Google’s spoken record says Panda was replaced by something called Coati. Both come from Google. Only one of them is maintained.

None of this makes Coati fictional. Kim is a credible source speaking about systems he oversees, and a company is under no obligation to document every internal name. What can be said precisely is narrower and more useful: Coati has been named by Google once, out loud, four years ago, and never in writing — and the page Google maintains for exactly this purpose was revised nine months ago without adding it.

Why this belongs on this beat rather than in an SEO history. A term with no primary documentation and a large secondary literature is the ideal input for a confidently wrong answer. Every condition is present: a plausible name, an authoritative-sounding origin, years of accumulated third-party explainers describing its behavior and offering optimization advice for it, and nothing authoritative to contradict them. An engine synthesizing the open web will find near-unanimity and no dissent.

This publication sees the query in its own Search Console, which is why it went looking. The demand is real and the record behind it is one sentence. Those are the conditions under which an answer engine is most likely to state something firmly that its own source could not support — and the check that resolves it took one fetch of a page Google publishes and maintains.

We have not asked Google to confirm or retire the name. If it responds, this item will carry the answer.